REV. A

AD9945

–5–

PIN CONFIGURATION

TOP VIEW

24 REFB

23 REFT

22 CCDIN

21 AVSS

D2 1

D3 2

D4 3

20 AVDD

19 SHD

18 SHP

17 CLPOB

D5 4

D6 5

D7 6

D8 7

D9 8

AD9945

PIN 1

INDICATOR

PIN FUNCTION DESCRIPTIONS

Pin Number

Mnemonic

Type

Description

1 to 10, 31, 32

D2 to D11, D0, D1

DO

Digital Data Outputs

11

DRVDD

P

Digital Output Driver Supply

12

DRVSS

P

Digital Output Driver Ground

13

DVDD

P

Digital Supply

14

DATACLK

DI

Digital Data Output Latch Clock

15

DVSS

P

Digital Supply Ground

16

PBLK

DI

Preblanking Clock Input

17

CLPOB

DI

Black Level Clamp Clock Input

18

SHP

DI

CDS Sampling Clock for CCD’s Reference Level

19

SHD

DI

CDS Sampling Clock for CCD’s Data Level

20

AVDD

P

Analog Supply

21

AVSS

P

Analog Ground

22

CCDIN

AI

Analog Input for CCD Signal

23

REFT

AO

A/D Converter Top Reference Voltage Decoupling

24

REFB

AO

A/D Converter Bottom Reference Voltage Decoupling

25

SL

DI

Serial Digital Interface Load Pulse

26

SDATA

DI

Serial Digital Interface Data Input

27

SCK

DI

Serial Digital Interface Clock Input

28 to 30

NC

NC

Internally Pulled Down. Float or connect to GND.

TYPE: AI = Analog Input, AO = Analog Output, DI = Digital Input, DO = Digital Output, P = Power.